Add Mobile Rack PeripheralsUsing the mobile rack mounting kit, you can install two 5.25-inch mobile rack devices inside the III-R's enclosure, such as an internal LTO 6 tape drive plus an enclosure for four swappable 2.5-inch SSDs. An alternate configuration might include a Sonnet Qio MR pro universal media reader. Or, install one full height mobile rack devices, such as an enclosure for three swappable 3.5-inch hard disk drivesnow you can add more devices to your rack without taking up additional rack space. The Echo Express III-R Mobile Rack Kit includes an internal 250W power supply inside to power the installed devices, an internal fan to cool the installed devices, and mounting hardware to secure the devices and the kit itself.